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Prevent the outbreak of hemorrhagic disease of fish in autumn

Published: 2024-11-21 Author: mysheen
Last Updated: 2024/11/21, Fish are easy to get fulminant hemorrhagic disease in autumn. the disease has the advantages of acute onset, rapid transmission, long epidemic time, high mortality and great loss. Once the disease is difficult to control, the disease is easy to repeat, fish farmers should enhance the awareness of prevention to prevent the occurrence of the disease. First, fish species disinfection: fish species must be disinfected with 1%-2% salt water before entering the pond, and the bath time depends on the physique and temperature of the fish. When conditions permit, the fish species can be soaked with fulminant hemorrhagic disease vaccine. Second, timely change of water and increase oxygen: keep the water quality fresh and change water frequently. If

Fish are easy to get fulminant hemorrhagic disease in autumn. the disease has the advantages of acute onset, rapid transmission, long epidemic time, high mortality and great loss. Once the disease is difficult to control and the disease is easy to repeat, households should enhance their awareness of prevention and prevent the occurrence of the disease.

First, fish species disinfection: fish species must be disinfected with 1%-2% salt water before entering the pond, and the bath time depends on the physique and temperature of the fish. When conditions permit, the fish species can be soaked with fulminant hemorrhagic disease vaccine.

Second, timely change of water and increase oxygen: keep the water quality fresh and change water frequently. If the condition is limited, it is inconvenient to change water, the whole pool can be sprinkled with raw lime slurry, and the aerator should be used reasonably at the same time.

3. Regular water disinfection and oral drug prevention: environmental protection drugs such as dibromohydantoin and bromochloroling can be used to disinfect the water body alternately every 10 to 15 days, and beneficial microbial preparations can be used to improve the water quality every 5 days after disinfection. In the feed mixed with appropriate amount of berberine hydrochloride, aquatic special erythromycin and other safety drugs, 5 days as a course of treatment, 1 ~ 2 courses of treatment per month.

Fourth, reasonable close culture and mixed culture: when the culture density is too high, it is necessary to catch and sparse culture in batches, maintain a reasonable culture density in the pond, and try not to let the water environment bear overloaded fish stocks.

Fifth, choose medium and high-grade feed, and reduce the use of feed raw materials (raw bran, corn, @ # @ 245mm, etc.) and low-grade feed.

Sixth, pay attention to pond hygiene: usually, weeds should be removed frequently and food farms should be cleaned, no residual bait should be left, and dead fish should be fished out in time and treated innocuously.

 
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